Do I have to call or wait for people to call me when I am visiting another town??

by Genny
(Washington, DC)

I have a friend who just arrive from overseas. My friend's sister always thinks that every friend has to call the visiting sister to say HI. But I insist that the visiting sister is the one who has to call people to say HI and let them know she is in town.

Who is correct? Why? I would appreciate your explanation.

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